CN103174586A - Blade pitch angle control mechanism of wind driven generator - Google Patents
Blade pitch angle control mechanism of wind driven generator Download PDFInfo
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- CN103174586A CN103174586A CN2011104359575A CN201110435957A CN103174586A CN 103174586 A CN103174586 A CN 103174586A CN 2011104359575 A CN2011104359575 A CN 2011104359575A CN 201110435957 A CN201110435957 A CN 201110435957A CN 103174586 A CN103174586 A CN 103174586A
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- driven generator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
A blade pitch angle control mechanism of a wind driven generator comprises a mandril, a hub, a plurality of blade groups, an adjusting part, a control part and a plurality of sliding rods. The hub is fixedly arranged on the mandril. The plurality of blade groups are respectively provided with a fixed seat and a blade which are in coaxial tandem connection with each other, and the plurality of blade groups are arrayed on one side of the hub with the axial direction of the mandril as the center in an outward radiation shape and in an equiangular mode. The adjusting part is placed on one side of the hub and placed between one end of the mandril and the axial ends of the blade groups. The control part is used for adjusting the screw pitch angle of each blade. The adjusting part is provided with an adjusting seat which is driven by power supplied by the control part, and the adjusting seat makes reciprocating linear displacement along the axial direction of the mandril. The plurality of sliding rods are arranged on the adjusting seat by using one end of a rod shaft, and enable the other end of the rod shaft to be connected at an eccentric position corresponding to the axial ends of the blade groups. The blade pitch angle control mechanism of the wind driven generator can adjust the blade screw pitch angle through simplified components, cumbersome components which cause handicap of the development and the design of the wind driven generator is avoided, and meanwhile the number of different blades can be reduced.
Description
Technical field
The invention belongs to technical field of wind power generation, particularly about a kind of blade-pitch-angle control mechanism of wind-driven generator.
Background technique
wind-power electricity generation is to act on the blade of wind-driven generator by natural wind-force, order about blade rotation and drive generator operation to produce the green energy resource technology of electric power, and from mechanics, has certain relation between the kind angle of attack of the aerofoil section of blade (angle of attack) and lift coefficient, when the angle of attack of blade of wind-driven generator reaches to a certain degree, lift coefficient is increased to it to greatest extent, and generation stall (stall) phenomenon, the air-flow of blade surface of namely flowing through is peeled off and flow-disturbing occurs, though the blade of this moment is not had a lift effect, but drag effect still exists, be with, if blade is wished to get lift, the chord length line (chord line) of blade front and rear edge link and the angle (being the angle of attack) between wind are maintained in suitable operating range.
Because the wind speed of natural wind is also unstable, cause the blade rotational speed of wind-driven generator also to change thereupon, generally speaking, when the rotating speed of blade during lower than rated speed, the higher pitch of rotating speed (pitch) angle is more little more can obtain better lift, therefore, in the prior art, particularly in large-scale wind driven generator technology category, namely have by pitch and control (pitch control, or claim swing angle to control) device, the angle of pitch by changing blade is guaranteed the existence of lift effect so that the angle of attack is maintained in suitable operating range.
And above-mentioned pitch control gear, as disclosed flabellum pitch angle control structure in No. 095149013 application for a patent for invention case of China, it is mainly by a straight-line sleeve component, drive is articulated in the link component between this sleeve component and blade fixed base, in order to do the transmission by these link components, make the straight line motion of this sleeve component convert the start that drives the blade fixed base rotation to, reach according to this purpose and the effect that change blade-pitch-angle.
just, before above-mentioned patent, the case exposure is also imperfect by the technology contents of link component transmission, need the person of being pointed out have two especially, one is the outside that is slidedly arranged on axle for it in order to carry out straight-line sleeve component, therefore, its size needs with the change of axle external diameter size change thereupon, the stock control of beginning for wind generator is aobvious obstruction, it two is that it is articulated in the link component between sleeve component and blade fixed base, number is to change along with the number of blade quantity, and the demand of larger activity space arranged, thus, to cause the cabin outer cover design of wind-driven generator to be restricted, be unfavorable for exploitation.
Summary of the invention
the blade-pitch-angle control mechanism that the purpose of this invention is to provide a kind of wind-driven generator, it is by the force-applied and adjusting seat of reciprocal linear displacement start, drive the slide bar that slips, thereby the rotation by sharf application of force drive vane on the eccentric position of an end, to change the pitch angle of blade, accordingly, the blade-pitch-angle control mechanism of this wind-driven generator can be reached by the constituent components of simplifying the adjustment of blade-pitch-angle, avoided causing the development and Design of wind-driven generator to be hindered for loaded down with trivial details composition, simultaneously can be in response to the increase and decrease of different leaves quantity.
For achieving the above object, the present invention takes following technological scheme:
So the blade-pitch-angle control mechanism of wind-driven generator provided by the present invention includes an axle; One hub is fixedly arranged on this axle; Several vane group, the fixed base and the blade that have respectively coaxially to each other serial connection, and by this axle axially centered by towards each other isogonism ground outwards be the side that the radiation-like arrangement is positioned at this hub; One adjustment part is positioned at a side of this hub, and between this axle one end and respectively between the axial end of this vane group, in order to change the respectively pitch angle of this blade; One control device in order to provide motivational drive this adjustment part, is adjusted the respectively pitch angle of this blade according to this; This adjustment part has an adjusting seat, the power that provides by this control device is driven, at the axial up reciprocal linear displacement of this axle, several slide bars, be slidedly arranged on this adjusting seat with bar axle one end respectively, and bar axle another end is connected on the eccentric position of an axial end of corresponding vane group.
Described adjustment part more includes several microscler rocking arms, is fixed on an axial end of a corresponding vane group with major axis one end respectively, and with the another end slide bar pivot joint corresponding with.
Described adjusting seat is the polygonal plate, and slips with corresponding described slide bar with the cycle side plate end.
Described adjustment part more includes several chutes, is arranged with respectively on each side plate end of described adjusting seat, and slips with corresponding described slide bar one end.
The limit number of described adjusting seat is equal to the quantity of described each vane group, and makes each limit be opposite in an axial end of described each vane group.
Described axle has an axle body affixed with described hub, an axis hole from the past interior extension of described axle body one end;
Described control device has a drive link, coaxial being slidedly arranged in this axis hole, and an end also stretches out and affixed with described adjusting seat from described axle one end.
Described control device more includes a ring-type sliding sleeve, coaxial sliding sleeve is on described axle, and a connecting rod passes an one of described axle body and connects this sliding sleeve and described drive link with two ends, one linear actuators, driving this sliding sleeve with the axle head of exerting oneself is the axial reciprocating displacement along described axle.
Described control device more includes the cylindrical void of a predetermined length, is located on described axle body along extending axially of described axle, and slips with described connecting rod.
The invention has the beneficial effects as follows: the present invention is by the force-applied and adjusting seat of reciprocal linear displacement start, drive the slide bar that slips, thereby the rotation by sharf application of force drive vane on the eccentric position of an end, to change the pitch angle of blade, accordingly, the blade-pitch-angle control mechanism of this wind-driven generator can be reached by the constituent components of simplifying the adjustment of blade-pitch-angle, avoided causing the development and Design of wind-driven generator to be hindered for loaded down with trivial details composition, simultaneously can be in response to the increase and decrease of different leaves quantity.
Description of drawings
Fig. 1 is the stereo appearance figure of a preferred embodiment of the present invention.
Fig. 2 is a partial exploded view of a preferred embodiment of the present invention.
Fig. 3 is a local constitutional diagram of a preferred embodiment of the present invention.
Fig. 4 is another partial exploded view of a preferred embodiment of the present invention.
Fig. 5 is the end elevation of a preferred embodiment of the present invention.
Fig. 6 is the partial sectional view of a preferred embodiment of the present invention, shows the start of this control device.
Fig. 7 be a preferred embodiment of the present invention along the sectional view of the 7-7 secant of Fig. 6, show the start of this control device.
Fig. 8 be a preferred embodiment of the present invention along the axial end elevation of a vane group, show that this adjustment part controls blade on a pitch angular orientation.
Fig. 9 be a preferred embodiment of the present invention along the axial end elevation of a vane group, show that this adjustment part controls blade on another pitch angular orientation.
Embodiment
Below, namely lift with a preferred embodiment of the present invention, and coordinate graphic being further described.
See also Fig. 1 to 8, at the blade-pitch-angle control mechanism 10 of wind-driven generator that a preferred embodiment of the present invention discloses, it includes an axle 20, a hub 30, several vane group 40, a control device 50 and an adjustment part 60.
Straight oblique crank Z body 21, one axis holes 22 that this axle 20 has a suitable external diameter extend axially toward in from the axial end of this axle body 21 and form.
This hub 30 has the hub body 31 that without exception is discoideus, and serial connection is fixedly arranged on axle body 21 1 ends of this axle coaxially, and several connecting plates 32 equal angles each other vertically are fixed on the side plate face of this hub body 31 with the side plate end dividually separately.
Respectively this vane group 40 belongs to the known technology content, have respectively the tubulose fixed base 41 and the blade 42 that are each other coaxial serial connection, and make respectively that this tubulose fixed base 41 vertically is arranged on a corresponding connecting plate 32 separately, make according to this this vane group 40 respectively be by this axle 20 axially centered by outwards be the equal angles width and penetrate on the side plate face that is arranged in this hub body 31 with coming.
50 of this control devices have a drive link 51, coaxial being slidedly arranged in this axis hole 22, one end also stretches out from an end of this axle body 21, and correspondence is positioned at respectively 41 of this vane group, coaxial the wearing of one ring-type sliding sleeve 52 is slidedly arranged on all sides of this axle body 21, and can be vertically toward polyslip, one cylindrical void 53 runs through one one of this axle body 21 and along the suitable length of extending axially of this axle body 21, in order to be communicated with this axis hole 22 and axle body 21 outsides, one connecting rod 54 passes this cylindrical void 53, and bridge at this drive link 51 and this sliding sleeve 52 with two ends, one linear actuators 55 is located at a side of this axle 20, and join with exert oneself axle head and this sliding sleeve 52, in order to do to provide power to order about this sliding sleeve 52 shift reciprocately on this axle 20.
60 of this adjustment parts have one and are polygonal tabular adjusting seat 61, coaxial in the axial mode of this axle 20 with centre of curvature, be fixed on these drive link 51 1 ends, its limit number also equates with the quantity of this this vane group 40 respectively, take equilateral triangle as suitable example in the present embodiment, several chutes 62 are arranged with respectively on each limit end face of this adjusting seat 61, and make notch be opposite in the vane group 40 of a correspondence, several microscler rocking arms 63 vertically are fixed on an axial end of a corresponding vane group 40 with major axis one end respectively, and make the major axis another end axially be eccentric state with respect to affixed vane group, several slide bars 64 vertically are articulated on the major axis another end of a corresponding rocking arm 63 with bar axle one end respectively, and being, bar axle 64 is parallel to the axial and eccentric state of corresponding vane group, and bar axle another end is stretched into and be slidably connected in a corresponding chute 62.
composition by above-mentioned member, the blade-pitch-angle control mechanism 10 of this wind-driven generator is in the enforcement of adjusting blade pitch angle, to provide this drive link 51 required power of axial reciprocating linear displacement with this linear actuators 55, and when these drive link 51 axles move, drive is fixed in this adjusting seat 61 on the one end, make this adjusting seat 61 synchronous shift thereupon, furthermore, when this adjusting seat 61 is positioned on the position that is close to these axle 20 1 ends, as shown in Figure 8, making respectively, this vane group 40 has a suitable torque angle, and when this adjusting seat 61 from the position of this adjacent mandrel during outwards away from this axle 20 1 end, as shown in Figure 9, drive the rocking arm 63 of institute's pivot joint by this slide bar 64 respectively, bias forces on corresponding vane group 40, make according to this respectively suitable angle of the synchronous rotation of this vane group 40, thereby reach change respectively purpose and the effect of these vane group 40 pitch angles.
Also need to be pointed out more especially at this, the blade-pitch-angle control mechanism 10 of this wind-driven generator is taken off known technology compared to head, because it only can be reached by single slide bar and single rocking arm the control of each vane group, and by slipping between the pivot joint between slide bar and rocking arm and slide bar and adjusting seat, allow this vane group respectively synchronously to be subject to the adjustment of this adjusting seat, be with, it has the concrete effect of simple element, and can reduce shared space, and be conducive to the design of the cabin outer cover of wind-driven generator, make developmental research be easy to carry out.
Moreover, because the blade-pitch-angle control mechanism 10 of this wind-driven generator is with several vane group 40 of single adjusting seat 61 synchronization control, when the quantity of vane group increases, also only need change the vane group quantity that the limit number of this adjusting seat can be adapted to increase, for example, when blade from when opening three groups of embodiment and increasing to five groups, the polygonal of this adjusting seat also only needs to be varied to positive pentagon by equilateral triangle and get final product, need not as the too much connecting rod quantity of extra increase as known technology.
Claims (8)
1. the blade-pitch-angle control mechanism of a wind-driven generator, it comprises:
One axle;
One hub is fixedly arranged on this axle;
Several vane group, the fixed base and the blade that have respectively coaxially to each other serial connection, and by this axle axially centered by towards each other isogonism ground outwards be the side that the radiation-like arrangement is positioned at this hub;
One adjustment part is positioned at a side of this hub, and between this axle one end and respectively between the axial end of this vane group, in order to change the respectively pitch angle of this blade;
One control device in order to provide motivational drive this adjustment part, is adjusted the respectively pitch angle of this blade according to this;
It is characterized in that:
This adjustment part has an adjusting seat, the power that provides by this control device is driven, at the axial up reciprocal linear displacement of this axle, several slide bars, be slidedly arranged on this adjusting seat with bar axle one end respectively, and this bar axle another end is connected on the eccentric position of an axial end of corresponding vane group.
2. the blade-pitch-angle control mechanism of wind-driven generator according to claim 1, it is characterized in that, described adjustment part more includes several microscler rocking arms, is fixed on an axial end of a corresponding vane group with major axis one end respectively, and with the another end slide bar pivot joint corresponding with.
3. the blade-pitch-angle control mechanism of wind-driven generator according to claim 1, is characterized in that, described adjusting seat is the polygonal plate, and slip with corresponding described slide bar with the cycle side plate end.
4. the blade-pitch-angle control mechanism of wind-driven generator according to claim 3, is characterized in that, described adjustment part more includes several chutes, is arranged with respectively on each side plate end of described adjusting seat, and slips with corresponding described slide bar one end.
5. the blade-pitch-angle control mechanism of wind-driven generator according to claim 3, is characterized in that, the limit number of described adjusting seat is equal to the quantity of described each vane group, and make each limit be opposite in an axial end of described each vane group.
6. the blade-pitch-angle control mechanism of wind-driven generator according to claim 1, is characterized in that, described axle has an axle body affixed with described hub, an axis hole from the past interior extension of described axle body one end;
Described control device has a drive link, coaxial being slidedly arranged in this axis hole, and an end also stretches out and affixed with described adjusting seat from described axle one end.
7. the blade-pitch-angle control mechanism of wind-driven generator according to claim 6, it is characterized in that, described control device more includes a ring-type sliding sleeve, coaxial sliding sleeve is on described axle, one connecting rod, pass an one of described axle body and connect this sliding sleeve and described drive link with two ends, a linear actuators, driving this sliding sleeve with the axle head of exerting oneself is the axial reciprocating displacement along described axle.
8. the blade-pitch-angle control mechanism of wind-driven generator according to claim 7, is characterized in that, described control device more includes the cylindrical void of a predetermined length, is located on described axle body along extending axially of described axle, and slips with described connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104359575A CN103174586A (en) | 2011-12-22 | 2011-12-22 | Blade pitch angle control mechanism of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104359575A CN103174586A (en) | 2011-12-22 | 2011-12-22 | Blade pitch angle control mechanism of wind driven generator |
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| Publication Number | Publication Date |
|---|---|
| CN103174586A true CN103174586A (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104359575A Pending CN103174586A (en) | 2011-12-22 | 2011-12-22 | Blade pitch angle control mechanism of wind driven generator |
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| Country | Link |
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| CN (1) | CN103174586A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514687A (en) * | 2013-09-30 | 2015-04-15 | Gu株式会社 | Blade pitch controller for small-scale wind power generation system |
| CN110030149A (en) * | 2017-09-25 | 2019-07-19 | 青岛兰道尔空气动力工程有限公司 | A kind of resilient movement steering system with counter weight device |
| CN110030154A (en) * | 2017-09-25 | 2019-07-19 | 青岛兰道尔空气动力工程有限公司 | A kind of resilient movement steering system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2824321B2 (en) * | 1990-08-14 | 1998-11-11 | 三菱重工業株式会社 | Windmill |
| CN101037988A (en) * | 2006-03-16 | 2007-09-19 | 沈阳风电设备发展有限责任公司 | Wind-driven generator variable propeller pitch device |
| CN101334003A (en) * | 2007-06-26 | 2008-12-31 | 上海电气风电设备有限公司 | Adjustable blade pitch device eccentric lining structure and assembly method |
| CN101446267A (en) * | 2008-12-25 | 2009-06-03 | 浙江华鹰风电设备有限公司 | Active pitch-controlled wind turbine |
| CN201339537Y (en) * | 2008-12-25 | 2009-11-04 | 浙江华鹰风电设备有限公司 | Wheel hub of small and medium-sized wind-powered generator |
| CN201902287U (en) * | 2010-06-22 | 2011-07-20 | 保定市富风新能源设备有限责任公司 | Pitch changing device for wind power generator |
-
2011
- 2011-12-22 CN CN2011104359575A patent/CN103174586A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2824321B2 (en) * | 1990-08-14 | 1998-11-11 | 三菱重工業株式会社 | Windmill |
| CN101037988A (en) * | 2006-03-16 | 2007-09-19 | 沈阳风电设备发展有限责任公司 | Wind-driven generator variable propeller pitch device |
| CN101334003A (en) * | 2007-06-26 | 2008-12-31 | 上海电气风电设备有限公司 | Adjustable blade pitch device eccentric lining structure and assembly method |
| CN101446267A (en) * | 2008-12-25 | 2009-06-03 | 浙江华鹰风电设备有限公司 | Active pitch-controlled wind turbine |
| CN201339537Y (en) * | 2008-12-25 | 2009-11-04 | 浙江华鹰风电设备有限公司 | Wheel hub of small and medium-sized wind-powered generator |
| CN201902287U (en) * | 2010-06-22 | 2011-07-20 | 保定市富风新能源设备有限责任公司 | Pitch changing device for wind power generator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514687A (en) * | 2013-09-30 | 2015-04-15 | Gu株式会社 | Blade pitch controller for small-scale wind power generation system |
| CN110030149A (en) * | 2017-09-25 | 2019-07-19 | 青岛兰道尔空气动力工程有限公司 | A kind of resilient movement steering system with counter weight device |
| CN110030154A (en) * | 2017-09-25 | 2019-07-19 | 青岛兰道尔空气动力工程有限公司 | A kind of resilient movement steering system |
| CN110030149B (en) * | 2017-09-25 | 2023-07-21 | 青岛兰道尔空气动力工程有限公司 | Elastic movement steering system with counterweight device |
| CN110030154B (en) * | 2017-09-25 | 2023-08-01 | 青岛兰道尔航空科技有限公司 | Elastic movement steering system |
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Application publication date: 20130626 |